using PascalABCCompiler.Parsers;
using PascalABCCompiler.ParserTools.Directives;
using PascalABCCompiler.SyntaxTree;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;

namespace Languages.SPython.Frontend.Data
{
    internal class SPythonLanguageInformation : BaseLanguageInformation
    {
        public override BaseKeywords KeywordsStorage { get; } = new SPythonParser.SPythonKeywords();

        public override Dictionary<string, DirectiveInfo> ValidDirectives { get; protected set; }

        public override string BodyStartBracket => null;

        public override string BodyEndBracket => null;

        public override string ParameterDelimiter => ",";

        public override string ResultVariableName => null;

        public override string ProcedureName => null;

        public override string FunctionName => "def";

        public override string GenericTypesStartBracket => "[";

        public override string GenericTypesEndBracket => "]";

        public override string ReturnTypeDelimiter => "->";

        public override bool CaseSensitive => true;

        public override bool IncludeDotNetEntities => true;

        public override bool AddStandardUnitNamesToUserScope => false;

        public override bool AddStandardNetNamespacesToUserScope => false;

        public override bool UsesFunctionsOverlappingSourceContext => true;

        private readonly Dictionary<string, string> renamings = new Dictionary<string, string>
        {
            ["biginteger"] = "bigint"
        };

        private readonly HashSet<string> exclutions = new HashSet<string>
        {
            "__NewSetCreatorInternal"
        };

        private readonly Dictionary<string, string> specialModulesAliases = new Dictionary<string, string>
        {
            { "time", "time1" },
            { "random", "random1" },
        };

        public override Dictionary<string, string> SpecialModulesAliases => specialModulesAliases;

        public override void RenameOrExcludeSpecialNames(SymInfo[] symInfos)
        {
            for (var i = 0; i < symInfos.Length; i++)
            {
                if (symInfos[i] == null)
                    continue;

                if (renamings.TryGetValue(symInfos[i].name, out var newName))
                {
                    // копирование на всякий случай
                    symInfos[i] = new SymInfo(symInfos[i]);
                    symInfos[i].name = newName;
                }
                else if (exclutions.Contains(symInfos[i].name))
                {
                    symInfos[i] = new SymInfo(symInfos[i]);
                    symInfos[i].not_include = true;
                }
            }
        }

        public override string ConstructHeader(string meth, IProcScope scope, int tabCount)
        {
            throw new NotImplementedException();
        }

        public override string ConstructHeader(IProcRealizationScope scope, int tabCount)
        {
            throw new NotImplementedException();
        }

        public override string ConstructOverridedMethodHeader(IProcScope scope, out int off)
        {
            throw new NotImplementedException();
        }

        public override string FindExpression(int off, string Text, int line, int col, out KeywordKind keyw)
        {
            int i = off - 1;
            int bound = 0;
            bool punkt_sym = false;
            keyw = KeywordKind.None;
            System.Text.StringBuilder sb = new StringBuilder();
            Stack<char> tokens = new Stack<char>();
            Stack<char> kav = new Stack<char>();
            Stack<char> ugl_skobki = new Stack<char>();
            int num_in_ident = -1;
            keyw = TestForKeyword(Text, i);
            if (keyw == KeywordKind.Punkt) return "";
            while (i >= bound)
            {
                bool end = false;
                char ch = Text[i];
                if (kav.Count == 0 && (char.IsLetterOrDigit(ch) || ch == '_' || ch == '&' || ch == '\'' || ch == '!'))
                {
                    num_in_ident = i;
                    if (kav.Count == 0 && tokens.Count == 0)
                    {
                        int tmp = i;
                        if (ch == '\'')
                        {
                            i--;
                            if (kav.Count == 0)
                                kav.Push('\'');
                            while (i >= 0)
                            {
                                if (Text[i] != '\'')
                                    i--;
                                else
                                {
                                    if (i >= 1 && Text[i - 1] == '\'')
                                        i -= 2;
                                    else
                                        break;
                                }
                            }

                            if (i >= 0)
                                i--;
                        }
                        else
                            while (i >= 0 && (char.IsLetterOrDigit(Text[i]) || Text[i] == '_' || Text[i] == '&' || Text[i] == '!'))
                            {
                                i--;
                            }
                        while (i >= 0 && (Text[i] == ' ' || char.IsControl(Text[i]) || Text[i] == '}'))
                        {
                            if (Text[i] != '}')
                                i--;
                            else
                            {
                                while (i >= 0 && Text[i] != '{') //propusk kommentariev
                                    i--;
                                if (i >= 0)
                                    i--;
                            }
                        }
                        if (i >= 0 && (char.IsLetterOrDigit(Text[i]) || Text[i] == '_' || Text[i] == '&' || Text[i] == '!'))
                        {
                            bound = i + 1;
                            TestForKeyword(Text, i, ref bound, punkt_sym, out keyw);
                            for (int j = tmp; j > bound; j--)
                            {
                                sb.Insert(0, Text[j]);
                            }
                            if (sb.ToString().Trim() == "new")
                                return "";
                            i = bound;
                            continue;
                        }
                        else if (i >= 0 && Text[i] == '\'') return "";
                        i = tmp;
                    }
                    else
                        if (ch == '\'')
                        kav.Push('\'');
                    sb.Insert(0, ch);//.Append(Text[i]);
                }
                else if (ch == '.' || ch == '^' || ch == '&' || ch == '?' && IsPunctuation(Text, i + 1))
                {
                    if (ch == '.' && i >= 1 && Text[i - 1] == '.' && tokens.Count == 0)
                        end = true;
                    else if (ch == '?' && i + 1 < Text.Length && Text[i + 1] != '.')
                        end = true;
                    else
                        sb.Insert(0, ch);
                    if (ch != '.')
                        punkt_sym = true;
                }
                else if (ch == '}')
                {
                    if (kav.Count == 0)
                    {
                        while (i >= 0 && Text[i] != '{')
                        {
                            if (Text[i] != '$')//skip {$
                                sb.Insert(0, Text[i]);
                            i--;
                        }
                        if (i < 0)
                        {
                            break;
                        }
                        else if (Text[i] == '{')
                        {
                            sb.Insert(0, '{');
                        }
                    }
                    else
                        sb.Insert(0, ch);
                }
                else if (ch == '{')
                {
                    if (kav.Count == 0)
                    {
                        if (keyw == KeywordKind.None)
                            return sb.ToString();
                        sb.Insert(0, ch);
                        break;
                    }
                    else sb.Insert(0, ch);
                }
                else
                    switch (ch)
                    {
                        case ')':
                        case ']':
                            if (kav.Count == 0)
                            {
                                string tmps = sb.ToString().Trim(' ', '\r', '\t', '\n');
                                if (tmps.Length >= 1 && (char.IsLetter(tmps[0]) || tmps[0] == '_' || tmps[0] == '&' || tmps[0] == '?' || tmps[0] == '!') && tokens.Count == 0)
                                    end = true;
                                else
                                    tokens.Push(ch);
                            }
                            if (!end)
                            {
                                sb.Insert(0, ch);
                                punkt_sym = true;
                            }
                            break;
                        case '>':
                            if (tokens.Count == 0)
                            {
                                int j = i + 1;

                                while (j < Text.Length && char.IsWhiteSpace(Text[j]))
                                    j++;

                                if (ugl_skobki.Count > 0 || i == off - 1 || j == off && off == Text.Length || j < Text.Length && Text[i - 1] != '-' && (Text[j] == '.' || Text[j] == '('))
                                {
                                    ugl_skobki.Push('>');
                                    sb.Insert(0, ch);
                                }
                                else if (i >= 1 && Text[i - 1] == '-')
                                {
                                    if (!(kav.Count == 0 && tokens.Count == 0))
                                        sb.Insert(0, ch);
                                }
                                else
                                    end = true;
                            }
                            else
                                sb.Insert(0, ch);
                            break;
                        case '<':
                            if (tokens.Count == 0)
                            {
                                if (ugl_skobki.Count > 0)
                                {
                                    ugl_skobki.Pop();
                                    sb.Insert(0, ch);
                                }
                                else
                                    end = true;
                            }
                            else
                                sb.Insert(0, ch);
                            break;
                        case '[':
                        case '(':
                        case '|':
                            if (ch == '|' && ((tokens.Count == 0) || (tokens.Peek() == ']') || (tokens.Peek() == ')') || (tokens.Peek() == ',')))
                            // Закрывающий | - после него (tokens.Pop()) - пусто или ] ) ,
                            {
                                if (kav.Count == 0)
                                {
                                    string tmps = sb.ToString().Trim(' ', '\r', '\t', '\n');
                                    if (tmps.Length >= 1 && (char.IsLetter(tmps[0]) || tmps[0] == '_' || tmps[0] == '&' || tmps[0] == '?' || tmps[0] == '!') && tokens.Count == 0)
                                        end = true;
                                    else
                                        tokens.Push(ch);
                                }
                                if (!end)
                                {
                                    sb.Insert(0, ch);
                                    punkt_sym = true;
                                }
                            }
                            else
                            {
                                if (kav.Count == 0) // в т.ч. открывающий |
                                {
                                    if (tokens.Count > 0)
                                    {
                                        tokens.Pop();
                                        punkt_sym = true;
                                        sb.Insert(0, ch);
                                        if (ch == '(')
                                        {
                                            int tmp = i--;
                                            /*while (i >= 0 && (char.IsLetterOrDigit(Text[i]) || Text[i] == '_' || Text[i] == '&'))
                                            {
                                                i--;
                                            }*/
                                            while (i >= 0 && (Text[i] == ' ' || char.IsControl(Text[i]) || Text[i] == '}'))
                                            {
                                                if (Text[i] != '}')
                                                    i--;
                                                else
                                                {
                                                    while (i >= 0 && Text[i] != '{') //propusk kommentariev
                                                        i--;
                                                    if (i >= 0)
                                                        i--;
                                                }
                                            }
                                            if (i >= 0 && (char.IsLetterOrDigit(Text[i]) || Text[i] == '_' || Text[i] == '&' || Text[i] == '!' || Text[i] == '?' && IsPunctuation(Text, i + 1)))
                                            {
                                                bound = i + 1;
                                                TestForKeyword(Text, i, ref bound, punkt_sym, out keyw);
                                                if (keyw != KeywordKind.None && tokens.Count == 0)
                                                {
                                                    end = true;
                                                }
                                                else bound = 0;
                                            }
                                            else if (i >= 0 && Text[i] == '\'') return "";
                                            i = tmp;
                                        }
                                    }
                                    else
                                    {
                                        end = true;
                                        if (ch == '[')
                                        {
                                            keyw = KeywordKind.SquareBracket;
                                        }
                                    }

                                }
                                else sb.Insert(0, ch); punkt_sym = true;
                            }
                            break;
                        case '\'':
                            if (kav.Count == 0) kav.Push(ch); else kav.Pop();
                            sb.Insert(0, ch);
                            punkt_sym = true; break;
                        default:
                            if (!(ch == ' ' || char.IsControl(ch)))
                            {
                                if (kav.Count == 0)
                                {
                                    if (ch == ',' && ugl_skobki.Count > 0)
                                        sb.Insert(0, ch);
                                    else
                                    if (tokens.Count == 0)
                                        end = true;
                                    else
                                        sb.Insert(0, ch);
                                }
                                else
                                    sb.Insert(0, ch);
                            }
                            else
                            {
                                if (Text[i] == '\n')
                                {
                                    bool one_line_comment = false;
                                    int comment_position = -1;
                                    if (CheckForComment(Text, i - 1, out comment_position, out one_line_comment))
                                    {
                                        if (!one_line_comment)
                                            end = true;
                                        else
                                        {
                                            sb.Insert(0, ch);
                                            i = comment_position;
                                        }

                                    }
                                    else
                                        sb.Insert(0, ch);
                                }
                                else
                                    sb.Insert(0, ch);
                            }
                            punkt_sym = true;
                            break;
                    }

                if (end)
                {
                    bool one_line_comment = false;
                    int comment_position = -1;
                    if (CheckForComment(Text, i, out comment_position, out one_line_comment))
                    {
                        int new_line_ind = sb.ToString().IndexOf('\n');
                        if (new_line_ind != -1) sb = sb.Remove(0, new_line_ind + 1);
                        else sb = sb.Remove(0, sb.Length);
                    }
                    break;
                }
                i--;
            }

            //return RemovePossibleKeywords(sb);
            if (sb.Length > 0 && sb[sb.Length - 1] == '?')
                sb.Remove(sb.Length - 1, 1);
            
            return sb.ToString().Trim();
        }

        private bool CheckForComment(string Text, int off, out int comment_position, out bool one_line_comment)
        {
            int i = off;
            one_line_comment = false;
            comment_position = -1;
            Stack<char> kav = new Stack<char>();
            bool is_comm = false;
            while (i >= 0 && !is_comm && Text[i] != '\n' && Text[i] != '\r')
            {
                if (Text[i] == '\'' || Text[i] == '"')
                {
                    if (kav.Count == 0) kav.Push('\'');
                    else kav.Pop();
                }
                else if (Text[i] == '{')
                {
                    if (kav.Count == 0)
                    {
                        comment_position = i;
                        while (i >= 0 && Text[i] != '\'' && Text[i] != '"')
                            i--;
                        if (i >= 1 && Text[i - 1] == '$')
                            return false;
                        is_comm = true;
                        return is_comm;
                    }
                }
                else if (Text[i] == '}')
                {
                    return false;
                }
                else if (Text[i] == '#')
                    if (kav.Count == 0)
                    {
                        is_comm = true;
                        one_line_comment = true;
                        comment_position = i - 1;
                    }

                i--;
            }
            return is_comm;
        }

        public override string FindExpressionForMethod(int off, string Text, int line, int col, char pressed_key, ref int num_param)
        {
            int i = off - 1;
            string pattern = null;
            int bound = 0;
            System.Text.StringBuilder sb = new System.Text.StringBuilder();
            Stack<char> tokens = new Stack<char>();
            Stack<char> kav = new Stack<char>();
            Stack<char> skobki = new Stack<char>();
            Stack<char> ugl_skobki = new Stack<char>();
            bool comma_pressed = pressed_key == ',';
            int num_in_ident = -1;
            bool punkt_sym = false;
            int next;
            KeywordKind keyw = TestForKeyword(Text, i);
            bool on_brace = false;
            if (keyw == KeywordKind.Punkt)
                return "";
            try
            {
                while (i >= bound)
                {
                    bool end = false;
                    char ch = Text[i];
                    if ((char.IsLetterOrDigit(ch) || ch == '_' || ch == '&' || ch == '!') && !isOperator(Text, i, out next))
                    {
                        num_in_ident = i;
                        if (kav.Count == 0 && tokens.Count == 0)
                        {
                            int tmp = i;
                            while (i >= 0 && (char.IsLetterOrDigit(Text[i]) || Text[i] == '_' || Text[i] == '&' || Text[i] == '!') && !isOperator(Text, i, out next))
                            {
                                i--;
                            }
                            while (i >= 0 && (Text[i] == ' ' || char.IsControl(Text[i]) || Text[i] == '}'))
                            {
                                if (Text[i] != '}')
                                    i--;
                                else
                                {
                                    while (i >= 0 && Text[i] != '{') //propusk kommentariev
                                        i--;
                                    if (i >= 0)
                                        i--;
                                }
                            }
                            if (i >= 0 && (char.IsLetterOrDigit(Text[i]) || Text[i] == '_' || Text[i] == '&' || Text[i] == '!') && !isOperator(Text, i, out next))
                            {
                                bound = i + 1;
                                TestForKeyword(Text, i, ref bound, punkt_sym, out keyw);
                                if (keyw == KeywordKind.New && comma_pressed)
                                    bound = 0;
                                if (keyw == KeywordKind.Function || keyw == KeywordKind.Constructor || keyw == KeywordKind.Destructor)
                                    return "";
                            }
                            else if (i >= 0 && (Text[i] == '\'' || Text[i] == '"')) return "";
                            i = tmp;
                        }
                        sb.Insert(0, ch);//.Append(Text[i]);
                    }
                    else if (ch == '.') sb.Insert(0, ch);
                    else if (ch == '}')
                    {
                        if (kav.Count == 0)
                        {
                            while (i >= 0 && Text[i] != '{')
                            {
                                sb.Insert(0, Text[i]);
                                i--;
                            }
                            if (i < 0)
                            {
                                break;
                            }
                            else if (Text[i] == '{')
                            {
                                sb.Insert(0, '{');
                            }
                        }
                        else
                            sb.Insert(0, ch);
                    }
                    else if (ch == '{')
                    {
                        if (kav.Count == 0)
                        {
                            sb.Insert(0, ch);
                            break;
                        }
                        else sb.Insert(0, ch);
                    }
                    else
                        switch (ch)
                        {
                            case ')':
                            case ']':
                            case '>':
                                // Добавил это условие для питона EVA
                                if (pressed_key == '(' && ch == ')' && !sb.ToString().Contains(".") && tokens.Count == 0)
                                {
                                    end = true;
                                    break;
                                }
                                if (kav.Count == 0)
                                {
                                    int j = i + 1;

                                    while (j < Text.Length && char.IsWhiteSpace(Text[j]))
                                        j++;
                                    if (ch != '>')
                                        tokens.Push(ch);
                                    if (ch == ')')
                                        skobki.Push(ch);
                                    if (tokens.Count > 0 || pressed_key == ',')
                                        sb.Insert(0, ch);
                                    else if (i == off - 1 || j == off && off == Text.Length || ugl_skobki.Count > 0 || j < Text.Length && Text[i - 1] != '-' && (Text[j] == '.' || Text[j] == '('))
                                    {
                                        tokens.Push(ch);
                                        ugl_skobki.Push(ch);
                                        sb.Insert(0, ch);
                                    }
                                    else
                                        end = true;
                                }
                                else
                                    sb.Insert(0, ch); break;
                            case '[':
                            case '<':
                            case '(':
                                if (kav.Count == 0)//esli ne v kavychkah
                                {
                                    if (ch == '(')
                                        if (skobki.Count > 0)
                                            skobki.Pop();
                                        else skobki.Push('(');
                                    //esli byli zakryvaushie tokeny (polagaem, chto skobki korrektny, esli net, to parser v lubom sluchae ne proparsit
                                    if (tokens.Count > 0)
                                    {
                                        if (ch != '<')
                                            tokens.Pop();
                                        else if (ugl_skobki.Count > 0)
                                        {
                                            tokens.Pop();
                                            ugl_skobki.Pop();
                                        }
                                        sb.Insert(0, ch);//dobavljaem k stroke
                                        if (ch == '(')
                                        {
                                            int tmp = i--;
                                            /*while (i >= 0 && (char.IsLetterOrDigit(Text[i]) || Text[i] == '_' || Text[i] == '&'))
                                            {
                                                i--;
                                            }*/
                                            while (i >= 0 && (Text[i] == ' ' || char.IsControl(Text[i]) || Text[i] == '}'))
                                            {
                                                if (Text[i] != '}')
                                                {
                                                    i--;
                                                }
                                                else
                                                {
                                                    while (i >= 0 && Text[i] != '{')
                                                    {
                                                        //propusk kommentariev
                                                        i--;
                                                    }
                                                    if (i >= 0)
                                                        i--;
                                                }
                                            }

                                            if (i >= 0 && (char.IsLetterOrDigit(Text[i]) || Text[i] == '_' || Text[i] == '&' || Text[i] == '!'))
                                            {
                                                bound = i + 1;
                                                TestForKeyword(Text, i, ref bound, punkt_sym, out keyw);
                                                if (keyw == KeywordKind.New)
                                                    bound = 0;
                                                else
                                                if (keyw != KeywordKind.None && tokens.Count == 0)
                                                    end = true;
                                                else
                                                    bound = 0;
                                            }
                                            else if (i >= 0 && (Text[i] == '\'' || Text[i] == '"')) return "";
                                            i = tmp;
                                        }
                                    }
                                    else if (ch == '<' || ch == '>')
                                    {
                                        if (tokens.Count > 0 || pressed_key == ',')
                                            sb.Insert(0, ch);
                                        else
                                            end = true;
                                    }
                                    else
                                    if (!comma_pressed) //esli my ne v parametrah
                                        end = true; //zakonchili, tak kak doshli do pervoj skobki
                                    else
                                    {
                                        sb.Remove(0, sb.Length);//doshli do skobki, byla nazhata zapjataja, poetomu udaljaem vse parametry
                                        if (ch == '(')
                                            on_brace = true;
                                        //on_skobka = true;
                                        comma_pressed = false;
                                    }
                                }
                                else sb.Insert(0, ch);
                                break;
                            case '\'':
                            case '"':
                                if (kav.Count == 0)
                                    kav.Push(ch);
                                else
                                    kav.Pop();
                                sb.Insert(0, ch);
                                if (kav.Count == 0 && tokens.Count == 0)
                                    end = true;
                                break;
                            default:
                                if (!(ch == ' ' || char.IsControl(ch)))
                                {
                                    if (ch == '^')
                                        sb.Insert(0, ch);
                                    else
                                    if (kav.Count == 0)//ne v kavychkah
                                    {
                                        if (tokens.Count == 0)
                                        {
                                            if (ch != ',' && !comma_pressed)
                                                end = true;//esli ne na zapjatoj i ne v parametrah, to finish
                                            else if (ch == ',' && !comma_pressed)
                                                end = true;
                                            else if (ch == ',' && (pressed_key == '(' || pressed_key == '['))
                                                end = true;
                                            else
                                            {
                                                sb.Insert(0, ch);//prodolzhaem
                                                if (isOperator(Text, i, out next))
                                                {
                                                    i = next;
                                                    continue;
                                                }
                                            }

                                        }
                                        else
                                            sb.Insert(0, ch);//esli est skobki, prodolzhaem
                                        if (!end && ch == ',')
                                        {
                                            if (tokens.Count == 0)
                                                num_param++;//esli na zapjatoj, uvelichivaem nomer parametra
                                        }
                                    }
                                    else
                                        sb.Insert(0, ch);//prodolzhaem

                                }
                                else
                                if (Text[i] == '\n')
                                {
                                    bool one_line_comment = false;
                                    int comment_position = -1;
                                    if (CheckForComment(Text, i - 1, out comment_position, out one_line_comment)) //proverjaem, net li kommenta ne predydushej stroke
                                    {
                                        if (!one_line_comment)
                                            end = true;
                                        else
                                        {
                                            sb.Insert(0, ch);
                                            i = comment_position;
                                        }

                                    }
                                    else
                                        sb.Insert(0, ch);//a inache vyrazhenie na neskolkih strokah
                                }
                                else
                                    sb.Insert(0, ch);
                                break;
                        }

                    if (end)
                    {
                        if (comma_pressed && !on_brace)
                            return "";
                        bool one_line_comment = false;
                        int comment_position = -1;
                        if (CheckForComment(Text, i, out comment_position, out one_line_comment))//proverka na kommentarii
                        {
                            int new_line_ind = sb.ToString().IndexOf('\n');
                            if (new_line_ind != -1) sb = sb.Remove(0, new_line_ind + 1);
                            else sb = sb.Remove(0, sb.Length);
                        }
                        break;
                    }
                    i--;
                }
                if (pressed_key == ',')
                    num_param++;
            }
            catch (Exception e)
            {

            }
            if (pressed_key == ',' && (!on_brace || skobki.Count == 0))
                return "";
            //return RemovePossibleKeywords(sb);
            return sb.ToString().Trim();
        }

        private bool isOperator(string Text, int i, out int next)
        {
            next = i;
            if (i >= 3)
            {
                string op = Text.Substring(i - 2, 3).ToLower().Trim();
                if (op == "and" || op == "div" || op == "mod" || op == "xor")
                {
                    if (!char.IsLetterOrDigit(Text[i - 3]) && Text[i - 3] != '_' && Text[i - 3] != '&' && !(i + 1 < Text.Length && char.IsLetterOrDigit(Text[i + 1])))
                    {
                        next = i - 3;
                        return true;
                    }
                    return false;
                }
            }
            if (i >= 2)
            {
                string op = Text.Substring(i - 1, 2).ToLower().Trim();
                if (op == "or")
                {
                    if (!char.IsLetterOrDigit(Text[i - 2]) && Text[i - 2] != '_' && Text[i - 2] != '&' && !(i + 1 < Text.Length && char.IsLetterOrDigit(Text[i + 1])))
                    {
                        next = i - 2;
                        return true;
                    }
                    return false;
                }
            }
            return false;
        }

        public override string FindExpressionFromAnyPosition(int off, string Text, int line, int col, out string expr_without_brackets)
        {
            int i = off - 1;

            // это например вызов метода без параметров
            expr_without_brackets = null;
            var keyw = KeywordKind.None;
            if (i < 0)
                return "";
            bool is_char = false;

            // идем в обе стороны от off
            System.Text.StringBuilder sb = new System.Text.StringBuilder();
            if (Text[i] != ' ' && (char.IsLetterOrDigit(Text[i]) || Text[i] == '_' || Text[i] == '&' || Text[i] == '?' && IsPunctuation(Text, i + 1) || Text[i] == '!'))
            {
                //sb.Remove(0,sb.Length);
                while (i >= 0 && (char.IsLetterOrDigit(Text[i]) || Text[i] == '_' || Text[i] == '&' || Text[i] == '?' && IsPunctuation(Text, i + 1) || Text[i] == '!'))
                {
                    //sb.Insert(0,Text[i]);//.Append(Text[i]);
                    i--;
                }
                is_char = true;
            }
            i = off;
            if (i < Text.Length && Text[i] != ' ' && (char.IsLetterOrDigit(Text[i]) || Text[i] == '_' || Text[i] == '&' || Text[i] == '?' && IsPunctuation(Text, i + 1) || Text[i] == '!'))
            {
                while (i < Text.Length && (char.IsLetterOrDigit(Text[i]) || Text[i] == '_' || Text[i] == '!'))
                {
                    //sb.Append(Text[i]);//.Append(Text[i]);
                    i++;
                }
                is_char = true;
            }
            if (is_char)
            {
                expr_without_brackets = FindExpression(i, Text, line, col, out keyw);
            }
            bool is_new = keyw == KeywordKind.New;
            bool meth_call = false;
            KeywordKind new_keyw = KeywordKind.None;
            int j = i;
            bool in_comment = false;
            bool brackets = false;
            while (j < Text.Length)
            {
                char c = Text[j];

                if (c == '(' && !in_comment)
                {
                    Stack<char> sk_stack = new Stack<char>();
                    in_comment = false;
                    bool in_kav = false;
                    sk_stack.Push('(');
                    j++;
                    while (j < Text.Length)
                    {
                        c = Text[j];
                        if (c == '(' && !in_kav)
                            sk_stack.Push('(');
                        else
                        if (c == ')' && !in_kav)
                        {
                            if (sk_stack.Count == 0)
                            {
                                break;
                            }
                            else
                            {
                                sk_stack.Pop();
                                if (sk_stack.Count == 0)
                                {
                                    i = j + 1;
                                    meth_call = true;
                                    break;
                                }
                            }
                        }
                        else if ((c == '\'' || c == '"') && !in_comment)
                        {
                            in_kav = !in_kav;
                        }
                        else if (c == '{' && !in_kav)
                        {
                            in_comment = true;
                        }
                        else if (c == '}' && !in_kav)
                        {
                            in_comment = false;
                        }
                        else if (c == '#' && !in_kav && !in_comment)
                        {
                            break;
                        }
                        j++;
                    }
                    break;
                }
                else if ((c == '<' || c == '&' && j < Text.Length - 1 && Text[j + 1] == '<') && !in_comment)
                {
                    Stack<char> sk_stack = new Stack<char>();
                    if (c == '&')
                        j++;
                    sk_stack.Push('<');
                    j++;
                    bool generic = false;
                    while (j < Text.Length)
                    {
                        c = Text[j];
                        if (c == '>')
                        {
                            sk_stack.Pop();
                            if (sk_stack.Count == 0)
                            {
                                i = j + 1;
                                generic = true;
                                break;
                            }
                        }
                        else if (c == '<')
                        {
                            sk_stack.Push('<');

                        }
                        else if (!char.IsLetterOrDigit(c) && c != '?' && c != '&' && c != '.' && c != ' ' && c != '\t' && c != '\n' && c != ',' && c != '!')
                        {
                            break;
                        }
                        j++;
                    }
                    if (generic)
                    {
                        //break;
                    }
                }
                else if (c == '[' && !in_comment)
                {
                    brackets = true;
                    break;
                }
                else if (c == '{')
                {
                    in_comment = true;
                }
                else if (c == '}')
                {
                    if (!in_comment)
                        break;
                    else
                        in_comment = false;
                }
                else if (c == ' ' || c == '\t' || c == '\n' || c == '\r')
                {

                }
                else
                {
                    if (!in_comment)
                        break;
                }
                j++;
            }
            if (is_new && string.Compare(expr_without_brackets.Trim(' ', '\n', '\t', '\r'), "new", true) == 0 && !meth_call)
            {
                expr_without_brackets = null;
                return null;
            }
            if (is_char)
            {
                string ss = FindExpression(i, Text, line, col, out new_keyw);
                if (brackets && is_new)
                {
                    int ind = ss.ToLower().IndexOf("new");
                    if (ind != -1)
                        return ss.Substring(ind + 3);
                }
                if (is_new && ss != null && ss.IndexOf("new") == -1 && ss.IndexOf(":") != -1)
                    return expr_without_brackets + "(true?" + ss;
                return ss;
            }
            return null;
        }

        // TODO: Реализовать EVA
        public override string GetArrayDescription(string elementType, int rank)
        {
            return "";
        }

        public override string GetClassKeyword(class_keyword keyw)
        {
            switch (keyw)
            {
                case class_keyword.Class: return "class";
                case class_keyword.TemplateClass: return "template class";
            }
            return null;
        }

        // TODO: Реализовать EVA
        public override string GetCompiledTypeRepresentation(Type t, MemberInfo mi, ref int line, ref int col)
        {
            return "";
        }

        public override string GetDescription(IBaseScope scope)
        {
            switch (scope.Kind)
            {
                case ScopeKind.Type: return GetDescriptionForType(scope as ITypeScope);
                case ScopeKind.CompiledType: return GetDescriptionForCompiledType(scope as ICompiledTypeScope);
                case ScopeKind.Procedure: return GetDescriptionForProcedure(scope as IProcScope);
                case ScopeKind.ElementScope: return GetDescriptionForElementScope(scope as IElementScope);
                case ScopeKind.TypeSynonim: return GetSynonimDescription(scope as ITypeSynonimScope);
                case ScopeKind.Namespace: return GetDescriptionForNamespace(scope as INamespaceScope);
                case ScopeKind.CompiledMethod: return GetDescriptionForCompiledMethod(scope as ICompiledMethodScope);

                /*case ScopeKind.Array: return GetDescriptionForArray(scope as IArrayScope);
                case ScopeKind.Enum: return GetDescriptionForEnum(scope as IEnumScope);
                case ScopeKind.Set: return GetDescriptionForSet(scope as ISetScope);

                case ScopeKind.CompiledField: return GetDescriptionForCompiledField(scope as ICompiledFieldScope);
                case ScopeKind.CompiledProperty: return GetDescriptionForCompiledProperty(scope as ICompiledPropertyScope);


                case ScopeKind.CompiledConstructor: return GetDescriptionForCompiledConstructor(scope as ICompiledConstructorScope);*/
            }
            return "";
        }

        protected string GetDescriptionForProcedure(IProcScope scope)
        {
            System.Text.StringBuilder sb = new System.Text.StringBuilder();
            string extensionType = null;
            if (scope.IsExtension && scope.Parameters.Length > 0)
            {
                extensionType = GetSimpleDescription(scope.Parameters[0].Type);
            }
            if (scope.IsExtension)
            {
                if (extensionType != null && extensionType.IndexOf(' ') != -1)
                {
                    sb.Append("(" + PascalABCCompiler.StringResources.Get("CODE_COMPLETION_EXTENSION") + " " + extensionType + ") ");
                    extensionType = null;
                }
                else
                {
                    sb.Append("(" + PascalABCCompiler.StringResources.Get("CODE_COMPLETION_EXTENSION") + ") ");
                }
            }

            if (scope.IsStatic) sb.Append("static ");
            if (scope.IsConstructor())
                sb.Append("constructor ");
            else
                sb.Append("def ");
            /*if (scope.ReturnType == null)
                sb.Append("procedure ");
            else
                sb.Append("function ");*/
            if (!scope.IsConstructor())
            {
                if (extensionType != null)
                {
                    sb.Append(extensionType + ".");
                    sb.Append(scope.Name);
                }
                else
                {
                    sb.Append(GetTopScopeName(scope.TopScope));
                    sb.Append(scope.Name);
                }
            }
            else
            {
                sb.Append(GetTopScopeNameWithoutDot(scope.TopScope));
            }

            sb.Append(GetGenericString(scope.TemplateParameters));
            sb.Append('(');
            IElementScope[] parameters = scope.Parameters;
            for (int i = 0; i < parameters.Length; i++)
            {
                if (scope.IsExtension && i == 0)
                    continue;
                sb.Append(GetSimpleDescription(parameters[i]));
                if (i < parameters.Length - 1)
                {
                    sb.Append("; ");
                }
            }
            sb.Append(')');
            if (scope.ReturnType != null && !scope.IsConstructor() && !(scope.ReturnType is IProcType && (scope.ReturnType as IProcType).Target == scope))
                sb.Append(" " + ReturnTypeDelimiter + " " + GetSimpleDescription(scope.ReturnType));
            //if (scope.IsStatic) sb.Append("; static");
            if (scope.IsVirtual) sb.Append("; ");
            else if (scope.IsAbstract) sb.Append("; abstract");
            else if (scope.IsOverride) sb.Append("; override");
            else if (scope.IsReintroduce) sb.Append("; reintroduce");
            sb.Append(';');
            return sb.ToString();
        }

        protected string GetDescriptionForElementScope(IElementScope scope)
        {
            string type_name = null;
            StringBuilder sb = new StringBuilder();
            if (scope.Type == null) type_name = "";
            else
                type_name = GetSimpleDescription(scope.Type);
            if (type_name.StartsWith("$"))
                type_name = type_name.Substring(1, type_name.Length - 1);
            switch (scope.ElemKind)
            {
                case SymbolKind.Variable: sb.Append("var " + GetTopScopeName(scope.TopScope) + scope.Name + ((type_name != "") ? ": " + type_name : "")); break;
                case SymbolKind.Parameter: sb.Append(kind_of_param(scope) + "parameter " + scope.Name + ": " + type_name + (scope.ConstantValue != null ? (":=" + scope.ConstantValue.ToString()) : "")); break;
                case SymbolKind.Field:
                    if (scope.IsStatic)
                        sb.Append("static ");
                    else
                        sb.Append("var ");
                    sb.Append(GetTopScopeName(scope.TopScope) + scope.Name + ": " + type_name);
                    // append_modifiers(sb, scope);
                    //if (scope.IsStatic) sb.Append("; static");
                    if (scope.IsReadOnly) sb.Append("; readonly");
                    break;

            }
            sb.Append(';');
            return sb.ToString();
        }

        protected override string kind_of_param(IElementScope scope)
        {
            switch (scope.ParamKind)
            {
                case PascalABCCompiler.SyntaxTree.parametr_kind.const_parametr: return "const ";
                case PascalABCCompiler.SyntaxTree.parametr_kind.var_parametr: return "var ";
                case PascalABCCompiler.SyntaxTree.parametr_kind.params_parametr: return "params ";
                case PascalABCCompiler.SyntaxTree.parametr_kind.out_parametr: return "out ";
            }
            return "";
        }

        protected override string GetFullTypeName(Type ctn, bool no_alias = true)
        {
            TypeCode tc = Type.GetTypeCode(ctn);
            if (ctn.FullName == null && !ctn.IsArray && !ctn.IsGenericTypeDefinition && ctn.IsGenericParameter)
                return ctn.Name;
            if (!ctn.IsEnum)
            {
                switch (tc)
                {
                    case TypeCode.Int32: return "int";
                    case TypeCode.Double: return "float";
                    case TypeCode.Boolean: return "bool";
                    case TypeCode.String: return "str";
                    case TypeCode.Char: return "char";
                }
                /*if (ctn.IsPointer)
                    if (ctn.FullName == "System.Void*")
                        return "pointer";
                    else
                        return "^" + GetFullTypeName(ctn.GetElementType());*/
            }
            else
                return ctn.FullName;
            if (!no_alias)
            {
                if (ctn.Name.Contains("Func`") || ctn.Name.Contains("Predicate`"))
                    return getLambdaRepresentation(ctn, true, new List<string>());
                else if (ctn.Name.Contains("Action`"))
                    return getLambdaRepresentation(ctn, false, new List<string>());
                else if (ctn.Name == "IEnumerable`1")
                    return "sequence of " + GetShortTypeName(ctn.GetGenericArguments()[0], false);
                else if (ctn.Name.Contains("Tuple`"))
                    return get_tuple_string(ctn);
            }
            int gen_pos = ctn.Name.IndexOf("`");
            if (gen_pos != -1 || ctn.IsGenericType)
            {
                int len = ctn.GetGenericArguments().Length;
                Type[] gen_ps = ctn.GetGenericArguments();
                System.Text.StringBuilder sb = new System.Text.StringBuilder();
                if (gen_pos != -1)
                    sb.Append(ctn.Namespace + "." + ctn.Name.Substring(0, gen_pos));
                else
                    sb.Append(ctn.Namespace + "." + ctn.Name);
                sb.Append(GenericTypesStartBracket);
                for (int i = 0; i < len; i++)
                {
                    sb.Append(gen_ps[i].Name);
                    if (i < len - 1)
                        sb.Append(", ");
                }
                sb.Append(GenericTypesEndBracket);
                return sb.ToString();
            }
            if (ctn.IsArray)
            {
                var rank = ctn.GetArrayRank();
                var strrank = rank > 1 ? "[" + new string(',', rank - 1) + "]" : "";
                return $"array{strrank}" + " of " + GetFullTypeName(ctn.GetElementType());
            }
            if (ctn == Type.GetType("System.Void*")) return "pointer";
            if (ctn.IsNested)
                return ctn.Name;
            return ctn.FullName;
        }

        public override string GetKeyword(SymbolKind kind)
        {
            switch (kind)
            {
                case SymbolKind.Class: return "class";
                case SymbolKind.Enum: return "enum";
                case SymbolKind.Null: return "None";
            }
            return "";
        }

        public override string GetShortName(ICompiledConstructorScope scope)
        {
            return "create";
        }

        public override string GetShortTypeName(Type ctn, bool noalias = true)
        {
            TypeCode tc = Type.GetTypeCode(ctn);
            if (ctn.FullName == null && !ctn.IsArray && !ctn.IsGenericTypeDefinition && ctn.IsGenericParameter)
                return ctn.Name;
            if (!ctn.IsEnum)
            {
                switch (tc)
                {
                    case TypeCode.Int32: return "int";
                    case TypeCode.Double: return "float";
                    case TypeCode.Boolean: return "bool";
                    case TypeCode.String: return "str";
                    case TypeCode.Char: return "char";
                }
                /*if (ctn.IsPointer)
                    if (ctn.FullName == "System.Void*")
                        return "pointer";
                    else
                        return "^" + GetShortTypeName(ctn.GetElementType(), noalias);*/
            }
            else return ctn.Name;
            if (ctn.Name.Contains("`"))
            {
                if (!noalias)
                {
                    if (ctn.Name.Contains("Func`") || ctn.Name.Contains("Predicate`"))
                        return getLambdaRepresentation(ctn, true, new List<string>());
                    else if (ctn.Name.Contains("Action`"))
                        return getLambdaRepresentation(ctn, false, new List<string>());
                    else if (ctn.Name == "IEnumerable`1")
                        return "sequence of " + GetShortTypeName(ctn.GetGenericArguments()[0], false);
                    else if (ctn.Name.Contains("Tuple`"))
                        return get_tuple_string(ctn);
                }
                int len = ctn.GetGenericArguments().Length;
                System.Text.StringBuilder sb = new System.Text.StringBuilder();
                sb.Append(ctn.Name.Substring(0, ctn.Name.IndexOf('`')));
                sb.Append('[');
                if (!noalias)
                {
                    Type[] gen_ps = ctn.GetGenericArguments();
                    for (int i = 0; i < len; i++)
                    {
                        sb.Append(gen_ps[i].Name);
                        if (i < len - 1)
                            sb.Append(", ");
                    }
                }
                sb.Append(']');
                return sb.ToString();
            }
            if (ctn.IsArray)
            {
                var rank = ctn.GetArrayRank();
                var strrank = rank > 1 ? "[" + new string(',', rank - 1) + "]" : "";
                return $"array{strrank}" + " of " + GetShortTypeName(ctn.GetElementType());
            }
            //if (ctn == Type.GetType("System.Void*")) return PascalABCCompiler.StringConstants.pointer_type_name;
            return ctn.Name;
        }

        public override string GetSimpleDescription(IBaseScope scope)
        {
            if (scope == null)
                return "";
            switch (scope.Kind)
            {
                case ScopeKind.Array:
                case ScopeKind.Enum:
                case ScopeKind.Set:
                    if (scope is ITypeScope && (scope as ITypeScope).Aliased)
                        return scope.Name;
                    break;
                case ScopeKind.TypeSynonim:
                case ScopeKind.Type:
                    if (scope.Name == "biginteger")
                        return "bigint";
                    break;
            }
            switch (scope.Kind)
            {
                case ScopeKind.Type: return GetSimpleDescriptionForType(scope as ITypeScope);
                case ScopeKind.CompiledType: return GetSimpleDescriptionForCompiledType(scope as ICompiledTypeScope, false);
                case ScopeKind.Procedure: return GetSimpleDescriptionForProcedure(scope as IProcScope);
                case ScopeKind.ElementScope: return GetSimpleDescriptionForElementScope(scope as IElementScope);
                case ScopeKind.TypeSynonim: return GetSimpleSynonimDescription(scope as ITypeSynonimScope);
                case ScopeKind.Array: return GetDescriptionForArray(scope as IArrayScope);
                case ScopeKind.UnitInterface: return GetDescriptionForModule(scope as IInterfaceUnitScope);
                case ScopeKind.Namespace: return GetDescriptionForNamespace(scope as INamespaceScope);
                case ScopeKind.CompiledMethod: return GetDescriptionForCompiledMethod(scope as ICompiledMethodScope);

                /*case ScopeKind.Enum: return GetDescriptionForEnum(scope as IEnumScope);
                case ScopeKind.Set: return GetDescriptionForSet(scope as ISetScope);

                case ScopeKind.CompiledField: return GetDescriptionForCompiledField(scope as ICompiledFieldScope);
                case ScopeKind.CompiledProperty: return GetDescriptionForCompiledProperty(scope as ICompiledPropertyScope);


                case ScopeKind.CompiledConstructor: return GetDescriptionForCompiledConstructor(scope as ICompiledConstructorScope);*/
            }
            return "";
        }

        private string GetDescriptionForModule(IInterfaceUnitScope scope)
        {
            var p = specialModulesAliases.FirstOrDefault(kv => kv.Value == scope.Name);

            if (!p.Equals(default(KeyValuePair<string, string>)))
                return "unit " + p.Key;

            return "unit " + scope.Name;
        }

        private string GetDescriptionForNamespace(INamespaceScope scope)
        {
            return "namespace " + scope.Name;
        }

        private string GetSimpleSynonimDescription(ITypeSynonimScope scope)
        {
            return scope.Name;
        }

        protected string GetDescriptionForArray(IArrayScope scope)
        {
            StringBuilder sb = new StringBuilder();
            sb.Append("array");
            ITypeScope[] inds = scope.Indexers;
            if (!scope.IsDynamic)
            {
                sb.Append('[');
                for (int i = 0; i < inds.Length; i++)
                {
                    sb.Append(GetSimpleDescription(inds[i]));
                    if (i < inds.Length - 1) sb.Append(',');
                }
                sb.Append(']');
            }
            if (scope.ElementType != null)
            {
                string s = GetSimpleDescription(scope.ElementType);
                if (s.Length > 0 && s[0] == '$') s = s.Substring(1, s.Length - 1);
                sb.Append(" of " + s);
            }
            return sb.ToString();
        }

        private string GetSimpleDescriptionForCompiledType(ICompiledTypeScope scope, bool fullName)
        {
            if (scope.CompiledType.Name != null && scope.CompiledType.Name.Contains("Func`"))
            {
                return getLambdaRepresentation(scope, true);
            }
            else if (scope.CompiledType.Name != null && scope.CompiledType.Name.Contains("Action`"))
            {
                return getLambdaRepresentation(scope, false);
            }
            else if (scope.CompiledType.Name != null && scope.CompiledType.Name.Contains("Predicate`1"))
            {
                return getLambdaRepresentation(scope, false);
            }
            if (scope.CompiledType.Name == "IEnumerable`1")
            {
                ITypeScope[] instances = scope.GenericInstances;
                if (instances != null && instances.Length > 0)
                {
                    return "sequence of " + GetSimpleDescriptionWithoutNamespace(instances[0]);
                }
                else
                    return "sequence of T";
            }
            else if (scope.CompiledType.Name != null && scope.CompiledType.Name.Contains("Tuple`"))
            {
                ITypeScope[] instances = scope.GenericInstances;
                if (instances != null && instances.Length > 0)
                {
                    return get_tuple_string(instances);
                }
                else
                    return "(T1,...)";
            }
            else
            {
                string s = !fullName ? GetShortTypeName(scope.CompiledType) : GetFullTypeName(scope.CompiledType);
                ITypeScope[] instances = scope.GenericInstances;
                if (instances != null && instances.Length > 0)
                {
                    System.Text.StringBuilder sb = new System.Text.StringBuilder();
                    int ind = s.IndexOf(GenericTypesStartBracket);
                    if (ind != -1) sb.Append(s.Substring(0, ind));
                    else
                        sb.Append(s);
                    sb.Append(GenericTypesStartBracket);
                    for (int i = 0; i < instances.Length; i++)
                    {
                        sb.Append(GetSimpleDescriptionWithoutNamespace(instances[i]));
                        if (i < instances.Length - 1) sb.Append(", ");
                    }
                    sb.Append(GenericTypesEndBracket);
                    s = sb.ToString();
                }
                return s;
            }
        }

        public override string GetStandardTypeByKeyword(KeywordKind keyw)
        {
            switch (keyw)
            {
                case KeywordKind.IntType: return "int";
                case KeywordKind.DoubleType: return "float";
                case KeywordKind.CharType: return "char";
                case KeywordKind.BoolType: return "bool";
                case KeywordKind.StringType: return "str";
            }
            return null;
        }

        public override string GetStringForChar(char c)
        {
            return "'" + c.ToString() + "'";
        }

        public override string GetStringForSharpChar(int num)
        {
            return "#" + num.ToString();
        }

        public override string GetStringForString(string s)
        {
            return "'" + s + "'";
        }

        public override string GetSynonimDescription(ITypeScope scope)
        {
            return "type " + scope.Name + GetGenericString(scope.TemplateArguments) + " = " + scope.Description;
        }

        public override string GetSynonimDescription(ITypeSynonimScope scope)
        {
            if (scope.ActType is ICompiledTypeScope && !(scope.ActType as ICompiledTypeScope).Aliased)
                return "type " + scope.Name + GetGenericString(scope.TemplateArguments) + " = " + GetSimpleDescriptionForCompiledType(scope.ActType as ICompiledTypeScope, true);
            else
                return "type " + scope.Name + GetGenericString(scope.TemplateArguments) + " = " + GetSimpleDescription(scope.ActType);
        }

        public override string GetSynonimDescription(IProcScope scope)
        {
            return "type " + scope.Name + " = " + scope.Description;
        }

        public override bool IsDefinitionIdentifierAfterKeyword(KeywordKind keyw)
        {
            if (keyw == KeywordKind.Function || keyw == KeywordKind.Constructor || keyw == KeywordKind.Punkt)
                return true;
            return false;
        }

        public override bool IsMethodCallParameterSeparator(char key)
        {
            return key == ',';
        }

        public override bool IsTypeAfterKeyword(KeywordKind keyw)
        {
            if (keyw == KeywordKind.Colon)
                return true;
            return false;
        }

        public override KeywordKind TestForKeyword(string Text, int i)
        {
            StringBuilder sb = new StringBuilder();
            int orig_i = i;
            int j = i;
            bool in_keyw = false;
            while (j >= 0 && Text[j] != '\n')
                j--;
            Stack<char> kav_stack = new Stack<char>();
            j++;
            bool in_format_str = false;
            while (j <= i)
            {
                if (Text[j] == '\'' || Text[j] == '"')
                {
                    if (kav_stack.Count == 0 && !in_keyw)
                    {
                        if (j == 0 || Text[j - 1] != '$')
                            kav_stack.Push('\'');
                        else
                        {
                            in_keyw = false;
                            in_format_str = true;
                        }

                    }
                    else if (kav_stack.Count > 0)
                        kav_stack.Pop();
                }
                else if (Text[j] == '{' && kav_stack.Count == 0 && !in_format_str)
                    in_keyw = true;
                else
                    if (Text[j] == '}')
                    in_keyw = false;
                j++;
            }
            j = i;
            if ((kav_stack.Count != 0 || in_keyw) && !in_format_str) return PascalABCCompiler.Parsers.KeywordKind.Punkt;
            if (j >= 0 && Text[j] == '.') return PascalABCCompiler.Parsers.KeywordKind.Punkt;
            while (j >= 0)
            {
                //if (Text[j] == '{') return PascalABCCompiler.Parsers.KeywordKind.Punkt;
                if (!in_keyw && (Text[j] == '\'' || Text[j] == '"' || Text[j] == '\n'))
                    break;
                if (Text[j] == '}')
                    in_keyw = true;
                else
                if (Text[j] == '#' && !in_keyw)
                    return PascalABCCompiler.Parsers.KeywordKind.Punkt;
                j--;
            }
            //if (j>= 0 && Text[j] == '\'') return CodeCompletion.KeywordKind.kw_punkt;
            while (i >= 0 && (Text[i] == ' ' || char.IsControl(Text[i]))) i--;
            if (i >= 0 && Text[i] == ':') return PascalABCCompiler.Parsers.KeywordKind.Colon;

            if (i >= 0 && Text[i] == ',')
            {

                while (i >= 0 && Text[i] != '\n')
                {
                    if (char.IsLetterOrDigit(Text[i]))
                        sb.Insert(0, Text[i]);
                    else
                    {
                        PascalABCCompiler.Parsers.KeywordKind keyw = GetKeywordKind(sb.ToString());
                        if (keyw == PascalABCCompiler.Parsers.KeywordKind.Uses)
                            return PascalABCCompiler.Parsers.KeywordKind.Uses;
                        else if (keyw == PascalABCCompiler.Parsers.KeywordKind.Var)
                            return PascalABCCompiler.Parsers.KeywordKind.Var;
                        else sb.Remove(0, sb.Length);
                    }
                    i--;
                }
            }
            else
                while (i >= 0 && (char.IsLetterOrDigit(Text[i]) || Text[i] == '_' || Text[i] == '!'))
                {
                    sb.Insert(0, Text[i]);
                    i--;
                }
            string s = sb.ToString().ToLower();

            return GetKeywordKind(s);
        }

        private string GetDescriptionForType(ITypeScope scope)
        {
            string template_str = GetTemplateString(scope);
            switch (scope.ElemKind)
            {
                case SymbolKind.Class:
                    string mod = "";
                    if (scope.IsStatic)
                        mod = "static ";
                    
                    if (scope.TopScope != null && scope.TopScope.Name != "" && !scope.TopScope.Name.Contains("$"))
                        return mod + "class " + scope.TopScope.Name + "." + scope.Name + template_str;
                    else return mod + "class " + scope.Name + template_str;
                
                case SymbolKind.Enum:
                    if (scope.TopScope != null && scope.TopScope.Name != "" && !scope.TopScope.Name.Contains("$"))
                        return "enum " + scope.TopScope.Name + "." + scope.Name;
                    else return "enum " + scope.Name;
            }

            if (scope.TopScope != null)
                return scope.TopScope.Name + "." + scope.Name;
            else return scope.Name;
        }

        private string GetDescriptionForCompiledType(ICompiledTypeScope scope)
        {
            string s = GetFullTypeName(scope.CompiledType);
            ITypeScope[] instances = scope.GenericInstances;
            if (instances.Length > 0)
            {
                System.Text.StringBuilder sb = new System.Text.StringBuilder();
                int ind = s.IndexOf(GenericTypesStartBracket);
                if (ind != -1) sb.Append(s.Substring(0, ind));
                else
                    sb.Append(s);
                sb.Append(GenericTypesStartBracket);
                for (int i = 0; i < instances.Length; i++)
                {
                    sb.Append(GetSimpleDescriptionWithoutNamespace(instances[i]));
                    //sb.Append(instances[i].Name);
                    if (i < instances.Length - 1) sb.Append(", ");
                }
                sb.Append(GenericTypesEndBracket);
                s = sb.ToString();
            }

            switch (scope.ElemKind)
            {
                case SymbolKind.Class:
                    string mod = "";
                    if (scope.IsStatic)
                        mod = "static ";
                    else
                    {
                        if (scope.IsAbstract)
                            mod = "abstract ";
                        if (scope.IsFinal)
                            mod += "sealed ";
                    }
                    return mod + "class " + s;
                case SymbolKind.Interface:
                    return "interface " + s;
                case SymbolKind.Enum:
                    return "enum " + s;
                case SymbolKind.Delegate:
                    return "delegate " + s;
                case SymbolKind.Struct:
                    return "record " + s;
                case SymbolKind.Type:
                    return "type " + s;
            }
            return s;
        }
    }
}